Dumbo

The Dumbo ride has its own loop.
In the early years of the park, it played various Disney music (including a jaunty version of "Yo Ho, A Pirates Life for Me" which I recorded during the ride).
Unfortunately the ride only lasts 90 seconds (I timed it) so there wasn't much time to hear what was played.
The loop has now been changed to a more appropriate collection of circus music.

Loop Length 30:16

section 1

01 Whip & Spur

02 The Circus Bee

03 The Screamer

04 Thunder & Blazes

05 Circus Days (first section only, omitted in second section)

06 Bombasto

07 The Squealer

08 Rolling Thunder.

section 2

09 Whip & Spur

10 The Circus Bee

11 The Screamer

12 Thunder & Blazes

13 Bombasto

14 The Squealer

15 Rolling Thunder.

Note
This is not just a simple "played twice" loop as the loop misses out track 5 Circus Days on the second playthrough making the total loop length 30:16 and a total of 15 tracks.

All Tracks by the Eastman Wind Ensemble from the CD Screamers (Circus Marches).
Loop Length (first part)15:58 Loop Length (second part) 14:18 making a loop length of 30:16 in total

Listing provided by DLRP (but only for section 1 - it appears they may be unaware of the omitted track in section 2) Section 1 confirmed to a live recording (2010) by eyore, needmagic and wedroy1023 and the full 15 tracks (including section 2) confirmed to a full live recording made May 2013 by the above .
With thanks to Filmographik for noticing this.